The Trees of Texas 123 



Fruit a black, shining, indehiscent pod constricted 

 between the seeds. 



On limestone hills, valley of the Arkansas River to the San. 

 Antonio and westward to the upper Colorado River. 



2. Scphora secundiflora Dec. Evergreen Coral Bean. 

 Mountain Laurel. A small narrow topped tree 15-20 or a 

 shrub with upright branches, and velvety twigs which become 

 smooth with age. Leaves evenly pinnate, persistent, leaflets, 

 leathery 7 to 13. Flowers in termini racemes, violet blue, fra- 

 grant. Fruit a hard, woody, indehiscent pod much constricted 

 between the seeds. 



Matagorda Bay to New Mexico and Mexico. Common on 

 limestone cliffs. Planted for ornament. 



ROBINIA L. The Locusts. 



Trees or shrubs with alternate unequally pinnate leaves^ 

 prickly spines, flowers in drooping axillary racemes, and flat 

 dehiscent pods, winged on one edge. 



Flowers white 1. R. Pseudacacia. 



Flowers rose colored 2. R. Neo Mexicana. 



1. Robinia pseudceacia L. Locust. A rather large, slen- 

 der tree 70-80 high with ascending branches, and deeply 

 furrowed, reddish brown bark. Leaves unequally pinnate, 

 leaflets 7-19. Flowers in loose racemes, white with a yellow 

 spot on the 1 standard, fragrant. Fruit a dehiscent, slightly 

 curved, reddish brown, flat pod. 



An eastern tree introduced into our area. 



2. Robinia Neo Mexicana Gray. New Mexico Locust. A 

 small tree or shrub 20-25 high with ascending branches, thin, 

 scaly bark and almost straight spines. Leaves unequally pin- 

 nate, leaflets 10 to 15. Flowers in rather dense axillary ra- 

 cemes, rose colored. Fruit a dehiscent flat, leathery, light 

 brown pod. 



New Mexico, Arizona, Colorado and extending in Texas to- 

 the Pecos River Valley. 



